Turbine.



C. A. PARSONS, S.' S. COK L J. TURNBULL.

r TURBINE. APPLIUATIUH FILED .11111. 25. 1911.

Patented Oct. 10, 1911.

C. A. PARSONS, S. COOK a J. TURNBULL.

TURBINB.

APPLICATION FILED JAN. 25, 1911.'

Lgjgg O Patented 0m;-.1o,1911.

5 SHEETS-SHEET 2.

C. A. PARSONS, S. S. COOK & J. TURNBULL.

TURBINB. K PPLIOATION FILED JAN.Z5, 1911. 1,005,294` Patented Got. 10, 1911 G. A. PARSONS, S, S. COOK 6v J. TURNBULL. TUBBINE.

PPLIOATIOK FILED JAN.25, 1911.

Patented Oct. 10, 19H

5 SHEETS-SHEET 4.

my n

G. PARSNS, S. 000K n J. TURNBULL'.

' TUEBINE.

PPLIoATIoH funn JA1L25, 1911.

www@

Patented Got'. 10, 1911.

noot-ieee.

UNlTED STATS ist. neuron,

CHARLES A'JGERNGN PARSONS, OF NEWCASTLE-UPON-TYNE, AND STANLEY.' SMLI''H COOK ANB JH'N TB/NBULL. 0F VJALLSEND, ENGLAN; @AED COOK AND TURNBUQL ASSIGNP/S TQ SAID IRSONS.

binnenin.

itpplication tiled January 25, 1911.

To all whom 'it may concern:

Be it known that we, @Himnos Anni-annex Pnnsons, if). i3., e subject ot the King oi Great Britain and lirelonti, nml residing et Heaton lVorks, Newenstle-upon-'iyne, in the eounty of Northumberland, England, and STANLEY Sui'rn Coon :uid Jenn TURNBULL, subjects ot' the King of Great Britain and. Ireland, both residing et Tnrbinie Works, VVollsendonfi`yne, in the county of Northumberland, England, have invented certain new and useful Improvements in and Relating to Turbines, of which the tollovvingv is o. speeiliention.

This invention relates to the oasings for turbine rotors and the like.

:in such eosings beve hitherto been proposed, the easing ends ere permanently et tselieol to or forni port of tlie'eesin'g booty. This necessitates that in order to pass the rotor in and out ot its working position to e position clear of the cylinder body, the internal surfaces lof seid casing ends which ore at a less distance from the central axis ot the turbine than the extreme projecting ports o the rotor body must be pleeed loteny elly farther outboard then the sniffL projecting parte thereby inereesing the length ot the turbine..

The objeet oli the present invention is to provide e construction et" turbine easing by which the length and tbe Weight of the turbine reduced. I

Tte invention consists for this purpose in .nog the enffisorportions of the enfls ot' f the turbine easing-i, detachable from tbe body ot the easing, sind oi'sueb n forni that they project axially ivithiifi.V the above mentioned projections of the rotor, the tieteebobility of the easing ends orpsrt thereof allowing the rotor to be removed from its normal position Within the easing.

The invention also consists in tbeforms ot turbine eosings hereinafter described.

Referring); new to the accompanying drawings, Figure l shows e turbine having e easing oi' ordinary Construction. Fig'. Q shows n turbine in which tbe easing is formed sooo/reihig to tbe present invention. Fig. 3 shows n modiiied construction of turbine easing' according to the present invention, l is :in end elevation of the right henri end of the vturbine shown in Fig. 3, :ind Fig. 5 shows the easing end of a land turbine.

Specification of Letters Patent lmntenteti Oct. i0, Mill.

Serial No. 604,641.

ln the. already known forni of turbine easing, suoli es that shown for example in Fig. l, the turbine rotor, a., is inelosecl by a casing which Consists oi :1n upper and n ioiver port, (i and c, respectively, connected together by n suitable joint in the central horizontal plone of the rotor, the easing endSal and f being formed in two poriN in? tegrztl with or permanently attached to the top and lower parte, Z1 nml o, respectively.

.it will be seen that litter the top part, b, of the easing has Ybeen removec/l, suticient clearance space in sin axial direction must be left between the enti` of the rotor, a, or in the ease illustrated of the dummy piston g, and the innermost surface of the lower halt of tbe easing' enti, (Z. As nlreedy pointed out, this necessitates that the Casing ends extend axially some distance outside the eX- treme projecting parts of the rotor and oonsequentl'y sucb. n casing odds considerably to the overall length of tbe turbine. Acoordingl,r to the present invention however, as applied for instance to the turbine shown in. Fig. 2, the cylindrical port of the turbine easing, :is before formed in two perte, t and o, suitably connected, generally by e horizontal joint, but the easing ends :ire 'formed in two or more parts, L, 1c, and one, respeetiveiy which vare entirely separate from the cylindrical parts, b, c.

Eneh complete easing; enel is formed with :i (lished or like shaped port so that this part extends axially within the extreme pro]eet ing,` ends of tbe turbine rotor, a, and dummy piston, o. The. dish or like shnped. cavity thus evailnbie in theresing ends een be utilized by placing therein the turbine glands, o, which prevent ieekag-e of steam between the rotor shaft, if, engi the cusing ends.

'l'.be upper port, h, of the easing endis generally bolted to the corresponding cylindriieal port, if), while the lower port, In, is bolted. to e nesting, gn, Whieh carries the bea-rings, (f, sind thrust bloeit, r, of the turbine. Consequently, the bearings end bloeit can now be plaeel neerer the turbine rotor and in feet vpnrtly Within tbe seme, thus decreesing the overall length and the weight. of the turbine.

ln tbe modified oonstruction of rthe casing shown in Figs. 3 enel 4, the dish orbite shaped ends., 71 lo, snel m, n, extend axially Within the dummy piston, g, nntlrtuor,y a, et each endv of the turbine sind, as before, carry Bti lili? turbine is shown,

, so pm,

f v the latter and It has been shaft bearings, g, w 'ch'can now be .formed 5 integral with or attached to the lower part,

c, of the casing end. f A separate casting bolted to the end casing and bearing casting now carries the thrust block, 1', and if the latter is dispensed with, as in the case of 10 land installations, it will beseen that the turbine and its bearings are now included Within a length substantially equal to that of the turbine rotor, a.

In Fig. 5 one end of the casing of a land the reduction in length of the turbine and its bearing-being apparent from the description of the other forms vwhich have similar referenceletters.

In removing the turbine rotor fromsuch casings we rst remove the top covers from the'bearings and block and then detach the upperl part, h and m, of 4each of the casing ends and detach the lower end part, 7c, and n,

from the main casing, c, and bearings, q, 21j; if attached to the latter, and then rotate the lower end vpart, 7c, and n, around the rotor shaft, z', untilithe part can be removed f1 through' the space causedbythe removal of the upper end parts, L and m. The upper 7), of the cylindrical part of the casing is then removed in the usual manner and the rotor, a, can then be removed. The rotor may also be taken out of the casing by siniply removing the top cylindrical part',

detaching the casing ends from the lower parts, c, of the casing when the rotor, a, and casing ends, and in some cases `the bearings, can then be lifted out bodily.

y shown that the object of this invention has been accomplished without in Aany wayinterfering with Athe accessibility of any of the turbine parts. l

It will be seen that such a turbine casing ,canv be used to incase the rotor of any type of turbine or combined reversingand ahead" turbine and that manymoditications can be made in the manner of carrying this invention into effect without in any Way departing from the spirit of the same.

- Having now described our invention what we claim as new and desire to secure'by Letters Patent is L l. A turbine comprising in combination a rotor contained within a casing, bearing means for the rotor and means supporting the bearing means, casing ends which are detachable from the casing and project axially ywithin the turbine rotor, said detachable 60 'ends being made in several parts thereby allowingthe rotor to be removed from its normal position within the easing without interfering with ihebearing supporting means.v

A turbine comprising in combination ,i 6.5 -a rotor contained Within'a casing, bearing 1 means for the rotor and means supporting the bearing means, said bearing supporting means being formed integral with the casing, casing ends which are detachable from the casing and project axially within the turbine' rotor, said detachable ends being ,V

the shaft passes therethrough said-detach-;

able ends being made in several parts thereby allowin the rotor to be removed from its normal position within the-casing without interfering with the bearing supporting means.

4. A turbine comprising in combination a rotor contained within a casing, bearing 'means for the rotor, and means supporting the bearing means, said bearing supporting means being formed integral with the casing ends which are detachable from the casing and project axially within tha-turbine rotor, a packing gland carried by e'ach of the casing ends at the place Where the, shaftl passes therethrough, said detachable ends being made in several parts thereby allowing the rotor to be removed from its normal position within the casing without interfering with the bearing supporting means.

5. A turbine comprising. in combination a rotor contained within a casing, bearing means for the rotor and means su porting the bearing means, casing ends w ich are detachable from the casing and project axially 'within the turbine rotor, said detachableends being made in several parts, while the bearing supporting. means are at o'ne end of the rotor formed integral with the casing, and at the other end attached to a lpart of a detachable casing end.

6. A turbine having a rotor, a shaft on -whichsaid rotor is mounted, and a casing containing the rotor, detachable ends on said casing projecting axially and radially within the turbine rotor, a packing gland carried by said casing ends at the place where the shaft passes therethrough, said ends being made in several parts, bearings for the rotor shaft `which are at one end of the shaft forn'ledintegral with the rotor casing, and at the other end attached to a part of the de- .tachable casing end.

7. A turbine havinga rotor, a shaft on which said rotor is mounted. and a casing containing the rotor. detachable ends for said casing. each end being made in several `parts and formed so as to project radially meinem as Well as axially Within the turbine rotor, e bearing at one end of the rotor shaft formed integral with the casing, the casing itself being also' attached to the bearing and a bearing at the Other end Of the Shaft emfried by the detachable end.

S. turbine having rotor, :i slmftron which suidmotor is mounted, and V:Leasing Containing the l'otolgi'deteeliable ends for said casing, enel] end being made in Severalpaite and formed so as to project radially f as Well axially'within the turbine rotor, e bearing at One end Of the rotor shaft formed integral with the easing, the easing end itself being also attached to the bearing 15 and a bearing at the Other end of the shaft carried bythe detachable end, and a, thrust bleek attached to the main casing and. One Of the detachable ends. f

In testimony whereof We have signed Our 20 Vnames lo this specification in the presence Of tWO subscribing Witnesses.

CHARLES ALGERNON PARSONS.

STANLEY SMlTH COOK.

JOHN TURNBLL.

' FREDERICK GORDON HAY BEDFORD, ALBERT WILLAM PARR. 

